The New Highs/New Lows trading indicator is one of the simplest yet most effective tools in technical analysis for gauging market breadth and momentum. It tracks how many stocks are reaching new 52 week highs versus those hitting new 52-week lows. By analyzing the number of stocks making new highs and new lows, traders can assess whether the market is gaining strength or showing signs of weakness. 

Imagine you’re driving down a road. Moving averages are like road signs that tell you which direction you’re heading, but the New Highs/New Lows indicator is more like a traffic report, alerting you to potential congestion ahead. If stocks are making new highs at a greater rate than stocks making new lows, it signals a bullish trend. Conversely, an increase in new lows suggests the market may be turning bearish.

For systematic traders, using the NH-NL indicator allows them to define a trading bias and make objective, rules-based trading decisions without emotional interference.

How New Highs/New Lows Works in Trading?

The New Highs/New Lows indicator is a market breadth indicator, meaning it evaluates the overall health of the market by comparing the number of stocks reaching new 52-week highs to the number of stocks reaching new 52-week lows. This is particularly useful in broad indices like the S&P 500, Nasdaq Composite, and Dow Jones.

How It’s Calculated?

The New Highs/New Lows indicator measures the difference between the number of stocks making new 52-week highs and those making new 52-week lows. Traders often track this data on the NYSE, Nasdaq, and other major exchanges.

  • Net New Highs = New 52-Week Highs – New 52-Week Lows

  • Indicator is positive when new highs outpace new lows, signaling bullish strength.

  • Indicator falls when new lows exceed new highs, indicating market weakness.

Interpreting the Indicator

  • New Highs > New Lows: This suggests a bullish market and strong momentum. It indicates that most stocks are experiencing upward price movement, which is a sign of a healthy market trend.
  • New Lows > New Highs: This points to a bearish market and weaker momentum. It indicates that more stocks are falling than rising, which could suggest an impending market reversal or downturn.

Example: Tracking New Highs/New Lows on Major Indices

Suppose you are monitoring the Nasdaq 100 and S&P 500. If the indicator shows a steady increase in the number of stocks making new highs, while fewer stocks are making new lows, it confirms bullish momentum.

Conversely, if the index falls and stocks making new 52-week lows start increasing, it suggests weakness in the index, signaling a potential downturn.

Systematic Trading Perspective: Why Rules Matter

Using objective indicators like New Highs/New Lows eliminates guesswork and defines a trading bias based on market data. This allows traders to react systematically to changes in market breadth.

Why Rules-Based Strategies Work?

Instead of relying on emotions, traders can establish concrete rules such as:

  • Enter long if the New Highs/New Lows indicator remains positive for 10 days.

  • Go short if the number of new lows outpaces new highs for five consecutive days.

  • Use a 10-day moving average to smooth out fluctuations.

Backtesting the New Highs/New Lows Indicator

To test the effectiveness of the NH-NL indicator, traders should backtest their rules across different timeframes and indices like the Dow Jones, Nasdaq Composite, and S&P 500. This helps refine entry and exit signals, ensuring a systematic approach.

Challenges of Using New Highs/New Lows in a Trading System

While the New Highs/New Lows indicator provides useful information, it’s not without challenges. Here are a few common pitfalls and how traders can address them:

1. Delayed Signals

The New Highs/New Lows indicator is a lagging indicator—it reflects past price action. For instance, a sudden market reversal won’t be immediately visible through this indicator. Traders need to combine this with leading indicators (e.g., RSI, MACD) to get a fuller picture of market momentum.

2. Short-Term Noise

Markets often see highs or lows that do not indicate a true trend shift. To filter this noise:

  • Use longer-term calculations (e.g., 200-day moving average).

  • Track the average of the record high percent over time.

3. Market-Specific Limitations

The New Highs/New Lows indicator can behave differently in various market conditions. For example, during a strong uptrend, you may see more stocks reaching new highs than during a sideways market. Traders need to adjust their strategy depending on whether the market is in a strong trend or in consolidation.

Actionable Tips for Using New Highs/New Lows Effectively

If you’re planning to integrate the New Highs/New Lows indicator into your trading strategy, here are a few actionable tips:

1. Combine with Trend Indicators

Use moving averages to validate signals. If the underlying index (e.g., S&P 500) is trading above its 200-day moving average, prioritize bullish signals.

2. Use Divergence for Reversal Signals

If the market breadth indicator shows a decline in new highs, while the index continues climbing, it may signal bearish divergence and an upcoming reversal.

3. Track Market Breadth Over Time

Instead of looking at just a single day’s data, monitor the New Highs/New Lows indicator over several days or weeks. A consistent pattern of more new highs than lows can confirm a strong trend. Conversely, a shift to more new lows could signal weakening market strength.

4. Combine with Volume Indicators

Combine the New Highs/New Lows with volume indicators like On-Balance Volume (OBV) to confirm the strength of the signal. If the New Highs/New Lows indicator shows an increase in new highs and is supported by increasing volume, the market trend is likely stronger.

Conclusion & Call to Action

The New Highs/New Lows indicator is an essential tool in technical analysis, helping traders measure market strength and define a trading bias. Whether you’re tracking the Nasdaq Composite, S&P 500, or Dow Jones, monitoring the number of stocks reaching new 52-week highs versus new lows provides valuable insights.

By combining it with moving averages, volume analysis, and systematic trading rules, traders can forge a new high in their trading performance while avoiding unnecessary risks.

If you want to take your trading to the next level, learn how to build a rules-based trading system that includes powerful indicators like New Highs/New Lows in The Trader Success System.

author avatar
Adrian Reid Founder and CEO
Adrian is a full-time private trader based in Australia and also the Founder and Trading Coach at Enlightened Stock Trading, which focuses on educating and supporting traders on their journey to profitable systems trading. Following his successful adoption of systematic trading which generated him hundreds of thousands of dollars a year using just 30 minutes a day to manage his system trading workflow, Adrian made the easy decision to leave his professional work in the corporate world in 2012. Adrian trades long/short across US, Australian and international stock markets and the cryptocurrency markets. His trading systems are now fully automated and have consistently outperformed international share markets with dramatically reduced risk over the past 20+ years. Adrian focuses on building portfolios of profitable, stable and robust long term trading systems to beat market returns with high risk adjusted returns. Adrian teaches traders from all over the world how to get profitable, confident and consistent by trading systematically and backtesting their own trading systems. He helps profitable traders grow and smooth returns by implementing a portfolio of trading systems to make money from different markets and market conditions.